LM74501QDDFRQ1 Texas Instruments - Yeehing Electronics

Automotive 3.2-V to 65-V reverse polarity protection controller with integrated VDS clamp

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The LM74501-Q1 operates in conjunction with an external N-channel MOSFET as a low loss reverse polarity protection solution. The device supports wide supply input range of 3.2 V to 65 V. The 3.2-V input voltage support is particularly well suited for severe cold crank requirements in automotive systems. The device can withstand and protect the loads from negative supply voltages down to –18 V. The LM74501-Q1 does not have reverse current blocking functionality and is suitable for input reverse polarity protection of loads that can potentially deliver energy back to the input supply such as automotive body control module motor loads.